Photocopying – Contact printing – Light boxes
Patent
1978-02-27
1980-06-17
Levy, Stewart J.
Photocopying
Contact printing
Light boxes
355 1, G02B 517
Patent
active
042080967
ABSTRACT:
The disclosure pertains to an optical display apparatus, or fiber optics magnification panel, and a method of making same. The display apparatus comprises a light input surface defined by one end of each of a multiplicity of elongated optical carrier strands, e.g. fiber optic strands, the one ends being arranged in a relatively closely spaced array of rows and columns. A light output surface is substantially perpendicular to the light input surface and is defined by the other ends of the strands, the other ends being arranged in a relatively remotely spaced configuration of rows and columns. Each column of strands extends rearwardly from the input surface to a depth which depends upon the column's position in the order of columns. Each strand of a column bends sidewardly at its point of greatest depth to an orientation which is substantially parallel to the input surface. The strands of each column are of different length with each strand of a column terminating at a transverse position which depends upon its row order in the column, such that the other ends of the strands of the columns of the input surface define columns of the output surface which are at less than a right angle with respect to the columns of the input surface. The result is a compact wedge-shaped display apparatus.
REFERENCES:
patent: 3402000 (1968-09-01), Crawford
patent: 3864034 (1975-02-01), Yevick
Levy Stewart J.
New York Institute of Technology
Novack Martin
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